Sound-control construction



April 27 1925 4 GRASS SQUND CONTRQL CONSTRUCTION Filed Feb, 29, 1924 l`Be it known ythat I, Orio .Patented Apr. a7, i926;

l u NlTEnLsTATES o'rmon. Guess, or omesso, ILLINOIS, .assitance To 'maono-Tons contenus, on"

. issue .PATENT esperes.

" souunoonreonconsumenten.

gplaon #imi Rohmer? $59, time. derlei No. 695,882.

To. or! wlmm may consom." ,a Y 4 I R. Queso, e 'citizen of the UnitedStates, residing at "-Chicsgo, in the county of Cook vand Stute et`Ilhnois'iiave invented certain new and u'jmful improvements inSound-Control Constructiomof which the following is a specisemis. 1 f

I l, ,n invention. relatesf to a new and improved sound controlconstruction, and more' particuliarlyy to' u, method; for controllingsound transmission through a phonograph tone arm or similarconstruction.

liti

llumerous types of Jhonographs, as new produceehhave no met od ofcontrolling the volume ot' sound transmitted from thesound arnpliiierchamber. The application ont such volume cont-rol means involves aconsiderable expense and large parts where passage of sound through sucha large opening is to be controlled. The control of the volume in thesmaller tone arm passages may be carn ried out with smaller and moresimple parte.

It has now become a, common practice to use a honograph tone arm andsound amplifying chambers :for amplifying sound fromloud speaking unitsoperated by radio` receiving apparatus. ln general, this use requiresthelremoval of the usual phonograph reproducer and the connectionthereto of the loud speaking unitby some suitable coupling means. Thissubstitution requires a certain amount of time and labor and with x manyforms of machines cannot be easily and sin quickly carried out. It isan" object of the present invention to provide volume control for atransmission of sound from a sound producer unit oit any sol-t to aphonograph ltone arm or .similar structure.

lt is a further object to provide a construction of this characteradopted to selectively control the sound transmitted to a singletone'arm or equivalent from a plurality of sound producing mechanismsuch as a phono graph sound hon and a radio telephone loud.

lill

vlt is'an additional obgect to provide construction o this A characterwhich is com posedof but iew and simple parts and winch 1s adapted forready commercial production.

i ther'and furtherbbjects will appear as the description proceeds..

'1"`a preferred embodiment oit' the present ini 'i Vil() asection'taknon line 4 4 y Figure 5 is a perspective view of the shutter member.

The tone erin'r 11 may' be' of any usual construction and provided witha usual type of enlarged base 12 which is secured to the motor hoard ofthe phonograph. The pas sage in the tone arm coxmnunicates with anyusual type of sound' amplifying chamber. The 'l' 13 has a portion14`itted into and suitably secured to the small end of the tone arm il..f

As best shown in Figure 3' the T 18 is provided with a reduced end 14:upon which is rotatably tted a connecting member 15. The threaded stud16 extends from. a reduced enel of the T through the member 15 and thelatter is held in place by means ofv the-nut 17 threaded on stud 16andlocked in position by. a set screw 18. The rotation of the memberF 15upon'the reduced portion of the T 'is limited by means of the screw 19carried by member 15 and the cooperating slot 20 out in the'portion 14as best shown in Figure 4. As shown in this figure the portion la orthe'l" is provided with the lateral opening 21 `which communicates withthe opening in the member 15 when that member is turned to place thesound box in the operated position.

The, elbow 36 is fitted into the member 15 andv is provided with aspiral. groove 22 xvhioh-coacts with the spring pressed ball 23 carriedby the member 15. The sound box titi 2e is rotatably carried upon theend of the elbow 38. As indicated in broken lines in Figure 4.-,themation of the sound box is limited by the 'spring pressed hall 25cooperating with the groove Q6 in the elbovv. l

.i'he opposite and of the l 13y 1s provided i ,sesgos with o reducedportion 27 which is adapted to receive the loud speaking unit or what isknown as e phone adapter' for connecting it phone unit thereto. Theupper side of the "i" 13 is provided with the slot 28. The shutter 29 isfitted Within the transverse bore of the i' and is provided with thestudv 30 extending through slot 28. Thus stud 30 carries the plete 31which is pressed against the cuter surface of the by the spring 32 whichlatter is held in place by the heed 33 of the stud. The shutter 2t) isprovided' with wine extensions 34 and 35 which :irc adaptedto close ofithe slot 28 iron] the bore of the T;

In the use of my device where n full volume of sound from the phonographreproducer is desired, the shutter 2f) will hc placed in the position inwhich it is shown in Figures l 'tnd 3. The cross bore of the "i"y isthen in dirct communication with the opening throughithe portion i4 ofthe i and with the tone arm. It' it is desired to reduce the volume ofsound the shutter is moved to the ieft by pushing the head $551 ot' thestud 30 to the left. Any desired portion of the opening through portion11i oi the T may thus be cut ofi from con'ununic.ition with the soundhon.

If it is desired to use the tone arm and i in connection with e loudspeaking unit such unit is fitted to the reduced portion 27 oi" the T,:is indicated in broken lines in Figure l. it' it is then desired totansmit the full volume from the ioud speaking unit to the tone arm 1lthe shutter 29 is moved fully to the left to the dotted line positionshown in Figure 3. it it is desired to `modify the volume of soundtransmitted from the ioud speaking unit the shutter 29 may he placed inany desired intermediate position.

Tvif/hen using the construction in connection with the ioud speakingunit, the sound box may be swung hack @here the tone erin, the screw i9and siot Q0 cooperating to iimit this movement. The sound box, eihorvand connector, as shown, are snitabie 'for use with both zigzag and h'iil-and-dnle records. 'iii/"hen the parts are in the position. shown inFigures l end 2, zig-zeg records are played. iifith the parte turned inthe 4tion shown in Fi ure in hrohen iines, hi'ih and-dale records 1ereplayed. 7.

My sound control construction is adapted to uiiy trsnsi'nit sound fromeither the ,sound box or ioud speaking unit or to modify soundtransmitted from either unit. rfins construction readily adapts a phonogreph to use as o radio phone loud speekcr and thus materiallyincreases its utiiity.

l have illustrated one preferred form of iny invention but contemplatesuch changes :and modifications come within the spirit and scope oi theappended ciaiins.

ciaiin: 1. A sound control' construction compris4 arm, ineens-forconnecting :i sound box to one end of seid T, the other end of theheingg adapted for connection to nA 10nd .gushing unit, and ny siidingshutter fitted into theTand adapted to selectively cut oii' connectionfrom either end. of tie to the tone arm. l

2. A sound control construction compris ing e. tone erin, a T connected.to said tiene :ii-m, ineens for connectinge sound hor; to one end ofsaid T, the other end of the E being adapted for connection to a ioudspeaking unit, a sliding shutter 'iitted into the T and adapted toseiectiveiy-out oi" connection from either end of the to the tone erin,and an operating member connected to the shutter and enteniingl throughsiot 3. A sound controi. construction comprising a tone erm, a iconnected to said tone arm, ineens for connectinge sound box' to one endof said T, the other end of thefi'A being adapted for connection .te :iioi'id speaking unit, s sliding .shutter .itted iii" the "i" and adapted'to seiectivciy out o-, connection from either end oi the is" to thetone erin, a slot in the "iu, an operiing inem her for the shutterextending through he slot, end/wings on the shutter adopted to close theslot throughout the range ori more of the shutter.

Signed Chicsgo, liiiinois, 01"' .ifehrnor ing a tone erin, a "i"connected to said tonev zin?

